Home
Class 10
MATHS
Show that a(1),a(2)"……"a(n),"……." form a...

Show that `a_(1),a_(2)"……"a_(n),"……."` form an A.P. where `a_(n)` is defined as below :
`a_(n)=9-5n`

Text Solution

Verified by Experts

The correct Answer is:
`-465`
Promotional Banner

Similar Questions

Explore conceptually related problems

Show that a_(1),a_(2)"……"a_(n),"……." form an A.P. where a_(n) is defined as below : a_(n)=3+4n

Show that a_(1), a_(2) ,……, a_(n) …. Form an AP where a_(n) is defined as below: (i) a_(n) = 3 + 4n , (ii) a_(n) = 9-5n Also find the sum of the first 15 terms in each case.

Show that a_(1), a_(2), …….., a_(n)….. form an AP where a_(n) is defined as below: (i) a_(n) = 3 + 4n . Also find the sum of the first 15 terms in each case.

If a_(1),a_(2),…………..,a_(n) , ……… are in G.P and a_(i)gt0 for each i then the value of |(loga_(n), loga_(n+2),loga_(n+4)),(log a_(n+6),loga_(n+8),loga_(n+10)),(loga_(n+12),loga_(n+14),loga_(n+16))|=

If a_(1), a_(2), a_(3),….a_(n) be an A.P with common difference d, then sec a_(1) sec a_(2) + sec a_(2) sec a_(3) + …+ sec a_(n-1) sec a_(n) =

If a_(1), a_(2), a_(3),…..a_(n) are in A.P where a_(i) gt 0, AA I then (1)/(sqrt(a_(1)) + sqrt(a_(2))) + (1)/(sqrt(a_(2)) + sqrt(a_(3)))+ …+ (1)/(sqrt(a_(n-1)) + sqrt(a_(n))) = (k)/(sqrt(a_(1)) + sqrt(a_(n))) then k=

If a_(1), a_(2), a_(3)…..a_(n) are in A.P. with common difference d then sin d [cosec a_(1) cosec a_(2) + cosec a_(2) cosec a_(3) + cosec a_(3) cosec a_(4)+ …"n terms"] =

If a_(1),a_(2),a_(3),………. are in A.P. such that a_(1) + a_(5) + a_(10) + a_(15) + a_(20) + a_(24) = 225, then a_(1) + a_(2) + a_(3) + …… a_(23) + a_(24) =

If a_(1), a_(2),…a_(n) are in H.P. then a_(1).a_(2) + a_(2).a_(3) + a_(3).a_(4) + …+ a_(n-1) .a_(n) =